Ball runner blocks / Steel / FNS / R1651

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BOSCH REXROTH

High precision ball runner block in the design of FNS.

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Product specification
Part Numbers
Catalog

Standard BSHP ball runner block made of steel

Definition of the format of ball runner blocks

Criterion	Designation	Code (example)
Criterion	Designation	F	N	S
Width	Flange (F)	F
	Slimline (S)	S
	Wide (B)	B
	Compact (C)	C
Length	Normal (N)		N
	Long (L)		L
	Short (K)		K
Height	Standard height (S)			S
	High (H)			H
	Low (N)			N

FNS – Flanged, normal, standard height R1651 ... 2.

Features and Ordering

Dynamic characteristics
Travel speed: v_max = 5 m/s
Acceleration: a_max = 500 m/s²
(If F_comb > 2.8 · F_pr : a_max = 50 m/s²)

Note on lubrication
▶ Pre-lubricated

Note
Can be used on all SNS/SNO ball guide rails.
Ball runner blocks of size 55 and size 65 can be found in chapter “Heavy-duty ball runner block BSHP made of steel” after this chapter.

Options and material numbers

Size	Ball runner blocks with size	Preload class				Accuracy class				Seals on ball runner blocks
		Preload class				Accuracy class				without ball chain			with ball chain
		C0	C1	C2	C3	N	H	P	XP	SS	LS¹⁾	DS	SS	LS¹⁾	DS
15	R1651 1	9				4	3	–	–	20	21	–	22	23	–
			1			4	3	2	8	20	21	2Z	22	23	2Y
				2		–	3	2	8	20	21	2Z	22	23	2Y
					3	–	–	–	8	20	21	2Z	22	23	2Y
20	R1651 8	9				4	3	–	–	20	21	–	22	23	–
			1			4	3	2	8	20	21	2Z	22	23	2Y
				2		–	3	2	8	20	21	2Z	22	23	2Y
					3	–	–	–	8	20	21	2Z	22	23	2Y
25	R1651 2	9				4	3	–	–	20	21	–	22	23	–
			1			4	3	2	8	20	21	2Z	22	23	2Y
				2		–	3	2	8	20	21	2Z	22	23	2Y
					3	–	–	–	8	20	21	2Z	22	23	2Y
30	R1651 7	9				4	3	–	–	20	21	–	22	23	–
			1			4	3	2	8	20	21	2Z	22	23	2Y
				2		–	3	2	8	20	21	2Z	22	23	2Y
					3	–	–	–	8	20	21	2Z	22	23	2Y
35	R1651 3	9				4	3	–	–	20	21	–	22	23	–
			1			4	3	2	8	20	21	2Z	22	23	2Y
				2		–	3	2	8	20	21	2Z	22	23	2Y
					3	–	–	–	8	20	21	2Z	22	23	2Y
45	R1651 4	9				4	3	–	–	20	–	–	22	–	–
			1			4	3	2	8	20	–	2Z	22	–	2Y
				2		–	3	2	8	20	–	2Z	22	–	2Y
					3	–	–	–	8	20	–	2Z	22	–	2Y
E.g.:	R1651 7		1				3			20

1) Only for accuracy classes N and H and for XP in preload class C1.

Preload classes
C0 = Without preload (clearance)
C1 = Moderate preload
C2 = Average preload
C3 = High preload

Seals
SS = Standard seal
LS = Low-friction seal
DS = Double-lip seal

Key
gray numbers = No preferred variant / combination
(partially longer delivery times)

Ordering example
Options:
▶ Ball runner blocks FNS
▶ Size 30
▶ Preload class C1
▶ Accuracy class H
▶ With standard seal, without ball chain
Material number: R1651 713 20

Dimensional Drawing and Specifications


		a) For O-ring Size 15: Ø 4 · 1.0 (mm) Size 20 – 45: Ø 5 · 1.0 (mm) Open lube port if necessary (see section entitled “Lubrication”). b) Recommended position for pin holes (dimension E₄ see chapter Mounting) Pre-drilled holes may be present at this position for manufacturing reasons. They are suitable for drilling out. c) Lube nipple, size 15 – 20: Funnel-type lube nipple DIN 3405-A, M3x5, B₂ = 1.6 mm When using different lube nipples, pay attention to the screw-in depth of 5 mm! Lube nipple, size 25 – 45: Hydraulic-type lube nipple DIN 71412-A M6x8, B₂ = 9.5 mm When using different lube nipples, pay attention to the screw-in depth of 8 mm! The lube nipple is included in the scope of delivery (not installed). Connection is possible on all sides. d) Sealing plugs may be present at this position for manufacturing reasons. Remove before mounting.

Size	Dimensions (mm)
Size	A	A₁	A₂	A₃	B^+0.5	B₁	E₁	E₂	E₃	E₈	E₉	H	H₁	H₂¹⁾	H₂²⁾	K₁	K₂	K₃	K₄
15	47	23.5	15	16.0	58.2	39.2	38	30	26	24.55	6.70	24	19.90	16.30	16.20	8.00	9.6	3.20	3.20
20	63	31.5	20	21.5	75.0	49.6	53	40	35	32.50	7.30	30	25.35	20.75	20.55	11.80	11.8	3.35	3.35
25	70	35.0	23	23.5	86.2	57.8	57	45	40	38.30	11.50	36	29.90	24.45	24.25	12.45	13.6	5.50	5.50
30	90	45.0	28	31.0	97.7	67.4	72	52	44	48.40	14.60	42	35.35	28.55	28.35	14.00	15.7	6.05	6.05
35	100	50.0	34	33.0	110.5	77.0	82	62	52	58.00	17.35	48	40.40	32.15	31.85	14.50	16.0	6.90	6.90
45	120	60.0	45	37.5	137.6	97.0	100	80	60	69.80	20.90	60	50.30	40.15	39.85	17.30	19.3	8.20	8.20

Size	Dimensions (mm)									Mass (kg)	Load capacities³⁾ (N)		Load moments³⁾ (Nm)
	Dimensions (mm)
	N₁	N₂	N₆^±0.5	S₁	S₂	S₅	S₉	T	V₁	m	C	C₀	M_t	M_t0	M_L	M_L0
15	5.2	4.40	10.3	4.3	M5	4.5	M2.5x3.5	60	5.0	0.20	9860	12700	95	120	68	87
20	7.7	5.20	13.2	5.3	M6	6.0	M3x5	60	6.0	0.45	23400	29800	300	380	200	260
25	9.3	7.00	15.2	6.7	M8	7.0	M3x5	60	7.5	0.65	28600	35900	410	510	290	360
30	11.0	7.90	17.0	8.5	M10	9.0	M3x5	80	7.0	1.10	36500	48100	630	830	440	580
35	12.0	10.15	20.5	8.5	M10	9.0	M3x5	80	8.0	1.60	51800	80900	1110	1740	720	1130
45	15.0	12.40	23.5	10.4	M12	14.0	M4x7	105	10.0	3.00	86400	132000	2330	3560	1540	2350

1) Dimension H₂ with cover strip
2) Dimension H₂ without cover strip
3) Load ratings and load moments for ball runner block without ball chain. Load ratings and load moments for ball runner block with ball chain Page.12
Determination of the dynamic load capacities and load moments is based on a stroke travel of 100,000 m according to DIN ISO 14728-1.
Often only 50,000 m are actually stipulated. For comparison: Multiply the values C, M_t and M_L by 1.26 according to the table.

Data to be displayed: 30; 45; 60

Part Number
R165111320
R165112320
R165121320
R165122320
R165131320
R165132320
R165141320
R165142320
R165171320
R165172320
R165181320
R165182320

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	Rail Width (mm)	Mounting Height H (mm)	Preload	Accuracy	Nominal Part Number	Basic Load Rating: Dynamic Load (N)	Basic Load Rating: Static Load (N)	Allowable Static Moment MA (Nm)	Allowable Static Moment MB (Nm)	Allowable Static Moment MC (Nm)	T Dimension (mm)
86.44 €	1	Available	70 Days	15	24	[Light Preload] Interchangeable, Light Preload	High Grade (high)	15	9860	12700	87	87	120	60
88.17 €	1	Available	70 Days	15	24	Medium Preload	High Grade (high)	15	12424	16002	151	151	110	60
115.23 €	1	Available	70 Days	25	36	[Light Preload] Interchangeable, Light Preload	High Grade (high)	25	28600	35900	360	360	510	60
117.53 €	1	Available	70 Days	23	36	Medium Preload	High Grade (high)	25	36036	45234	643	643	454	60
140.37 €	1	Available	70 Days	34	48	[Light Preload] Interchangeable, Light Preload	High Grade (high)	35	65268	101934	2192	2192	1424	80
140.37 €	1	Available	70 Days	34	48	Medium Preload	High Grade (high)	35	65268	101934	2192	2192	1424	80
176.78 €	1	Available	70 Days	45	60	[Light Preload] Interchangeable, Light Preload	High Grade (high)	45	108864	166320	4486	4486	2961	105
176.78 €	1	Available	70 Days	45	60	Medium Preload	High Grade (high)	45	108864	166320	4486	4486	2961	105
130.24 €	1	Available	70 Days	28	42	[Light Preload] Interchangeable, Light Preload	High Grade (high)	30	45990	60606	1046	1046	731	80
130.24 €	1	Available	70 Days	28	42	Medium Preload	High Grade (high)	30	45990	60606	1046	1046	731	80
100.82 €	1	Available	70 Days	20	30	[Light Preload] Interchangeable, Light Preload	High Grade (high)	20	23400	29800	260	260	380	60
102.86 €	1	Available	70 Days	20	30	Medium Preload	High Grade (high)	20	29484	37548	479	479	328	60

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Basic information

Set / Single Item	Block only	Block Type	FNS - Flange, normal, standard height	Rail Type	standard Rail
No. of Blocks	1	Material	Carbon steel	Ball Arrangement	Medium, Heavy Load Type
Retainer	Not provided	Lubrication Type	Lubrication Impregnated	Rolling Element	Ball
Lubrication Type	Lithium based grease filled	Seal Type	Standard seal

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Basic Attributes

Rail Width(mm)
15

20

23

25

28

34

45

53

63
Clear
Mounting Height H(mm)
24

30

36

42

48

60

70

90
Clear
Preload
- Light Preload
  - Interchangeable, Light Preload
- Medium Preload
- Clearance
Clear
Nominal Part Number
15

20

25

30

35

45

55

65
Clear
T Dimension(mm)
60

80

105

120

150
Clear
Type
- R1651
Clear
Accuracy
- Normal Grade (normal)
- High Grade (high)
Clear
Filter by CAD data type
- 3D
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